Answer: <em>f(x) </em>= 21 .The output is 21 when the input is 5. 
Step-by-step explanation:
f(x) = 4x+1  Substitute the input, 5, for x on the right side  <em> f(x) is the equivalent of  y, the output you are looking for</em>
<em>f(x) </em>= 4(5) + 1
<em>f(x) </em> = 20 +1
<em>f(x) </em>= 21
 
        
             
        
        
        
The two angles given are two angles of a triangle, so the third angle must be:
SPR=180-RSP-PRS
SPR=66°
        
             
        
        
        
{[12 ÷ 4] + [16 ÷ 8 (7 – 5)]} – 1.
{[3] + [2(2)]} – 1.
{[3] + [4]} – 1.
7-1
6
 
        
             
        
        
        
From the diagram, we know that it is an angle that adds up to 360
So
x+4x+2x+10+5x+50=360
Gather like terms 
12x+60=360
Move sixty to the other side as a negative number 
12x=300
Divide both sirs by twelve
x is equal to 25
AOB is 2x+10
Sub x in 2*25+10
AOB is 60
BOC is 5x+50
5*25+50, which is 175
BOD is x+2x+10
Which is 3x+10
Sub x 
3*25+10 which is 85
:)
        
                    
             
        
        
        
-2x = -1
x = 1/2
Any equation that returns x=1/2 is a solution to this problem. For example, x= (3•4)/6 can be simplified so that x=1/2